uninitialized constant ClassName::Enum

[fleck]

I have the class below

class User
include DataMapper::Resource

property :id, Serial

property :display, Enum[ :first, :last, :first_last, :last_first ]

end

When I try and run rake db:autoupgrade I get the following error message: uninitialized constant User::Enum

Below is the trace from rake:

** Invoke db:autoupgrade (first_time)
** Invoke environment (first_time)
** Execute environment
rake aborted!
uninitialized constant User::Enum
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/dm-core-1.2.0/lib/dm-core/model.rb:728:in const_missing' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/dm-core-1.2.0/lib/dm-core/property/lookup.rb:25:inconst_missing'
/Users/Jon/addtoit/app/models/user.rb:7:in <class:User>' /Users/Jon/addtoit/app/models/user.rb:1:in<top (required)>'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/dm-rails-1.2.1/lib/dm-rails/setup.rb:60:in block (2 levels) in preload_models' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/dm-rails-1.2.1/lib/dm-rails/setup.rb:60:ineach'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/dm-rails-1.2.1/lib/dm-rails/setup.rb:60:in block in preload_models' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/dm-rails-1.2.1/lib/dm-rails/setup.rb:59:ineach'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/dm-rails-1.2.1/lib/dm-rails/setup.rb:59:in preload_models' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/dm-rails-1.2.1/lib/dm-rails/railtie.rb:80:inblock (2 levels) in class:Railtie'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/activesupport-3.2.3/lib/active_support/callbacks.rb:418:in _run__2565405975579041820__prepare__1633098324659922499__callbacks' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/activesupport-3.2.3/lib/active_support/callbacks.rb:405:in__run_callback'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/activesupport-3.2.3/lib/active_support/callbacks.rb:385:in _run_prepare_callbacks' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/activesupport-3.2.3/lib/active_support/callbacks.rb:81:inrun_callbacks'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/actionpack-3.2.3/lib/action_dispatch/middleware/reloader.rb:74:in prepare!' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/actionpack-3.2.3/lib/action_dispatch/middleware/reloader.rb:48:inprepare!'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/railties-3.2.3/lib/rails/application/finisher.rb:47:in block in <module:Finisher>' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/railties-3.2.3/lib/rails/initializable.rb:30:ininstance_exec'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/railties-3.2.3/lib/rails/initializable.rb:30:in run' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/railties-3.2.3/lib/rails/initializable.rb:55:inblock in run_initializers'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/railties-3.2.3/lib/rails/initializable.rb:54:in each' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/railties-3.2.3/lib/rails/initializable.rb:54:inrun_initializers'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/railties-3.2.3/lib/rails/application.rb:136:in initialize!' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/railties-3.2.3/lib/rails/railtie/configurable.rb:30:inmethod_missing'
/Users/Jon/addtoit/config/environment.rb:5:in <top (required)>' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/railties-3.2.3/lib/rails/application.rb:103:inrequire'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/railties-3.2.3/lib/rails/application.rb:103:in require_environment!' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/railties-3.2.3/lib/rails/application.rb:292:inblock (2 levels) in initialize_tasks'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/task.rb:205:in call' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/task.rb:205:inblock in execute'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/task.rb:200:in each' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/task.rb:200:inexecute'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/task.rb:158:in block in invoke_with_call_chain' /Users/Jon/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/monitor.rb:211:inmon_synchronize'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/task.rb:151:in invoke_with_call_chain' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/task.rb:176:inblock in invoke_prerequisites'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/task.rb:174:in each' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/task.rb:174:ininvoke_prerequisites'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/task.rb:157:in block in invoke_with_call_chain' /Users/Jon/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/monitor.rb:211:inmon_synchronize'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/task.rb:151:in invoke_with_call_chain' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/task.rb:144:ininvoke'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/application.rb:116:in invoke_task' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/application.rb:94:inblock (2 levels) in top_level'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/application.rb:94:in each' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/application.rb:94:inblock in top_level'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/application.rb:133:in standard_exception_handling' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/application.rb:88:intop_level'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/application.rb:66:in block in run' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/application.rb:133:instandard_exception_handling'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/lib/rake/application.rb:63:in run' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/gems/rake-0.9.2.2/bin/rake:33:in<top (required)>'
/Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/bin/rake:19:in load' /Users/Jon/.rvm/gems/ruby-1.9.3-p125@rails32/bin/rake:19:in

'
Tasks: TOP => db:autoupgrade => environment

I'm using rails 3.2.3, if any more information is needed let me know.

I'm having the same issue. Any updates?

[dkubb]

Is dm-types listed somewhere in your Gemfile.lock? It's required to make the Enum type available when defining your models.

Should mention I use padrino, but above error occurs when trying to upgrade using migrations. No problem using Enum in my models so I guess it is purely a migrations problem.

Yes it is listed in my Gemfile.lock file. It worked before I updated ruby/gem/padrino packages on my Ubuntu.

I fixed it temporarily by using DataMapper::Property::Enum instead of just Enum.